Adjusting piece and pole piece conveying device

Abstract

The invention discloses an adjusting part and a pole piece conveying device, and relates to the technical field of battery production. The adjusting piece comprises a fixing shaft, a plurality of arc-shaped pieces, a wheel disc assembly and a driving assembly. The plurality of arc-shaped pieces are arranged around the fixed shaft; the arc-shaped piece is provided with a first end and a second end which are opposite. The wheel disc assembly comprises a first wheel disc assembly and a second wheel disc assembly, the first end is in transmission connection with the first wheel disc assembly, and the second end is connected with the second wheel disc assembly. The driving assembly is in transmission connection with the wheel disc assembly and enables the arc-shaped pieces to expand or contract in the radial direction. According to the technical scheme, the problem that the tightness degrees of the two sides are inconsistent in the pole piece conveying process can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of battery production, and in particular to an adjusting member and a pole piece conveying device. Background Art

[0002] In the production process of batteries, in order to ensure the flatness of the electrode, the electrode is supported on an adjusting member. However, during the transportation of the electrode, the electrode supported on the adjusting member is prone to one side being loose and the other side being tight, which will affect the yield of the product. Summary of the invention

[0003] The main purpose of the present invention is to provide an adjusting member and a pole piece conveying device, aiming to solve the problem of inconsistent tightness on both sides of the pole piece during conveyance.

[0004] To achieve the above-mentioned purpose, the adjusting member proposed in the present invention comprises a fixed shaft, a plurality of arc-shaped members, a wheel disc assembly and a driving assembly. The plurality of arc-shaped members are arranged around the fixed shaft; the arc-shaped member has a first end and a second end opposite to each other. The wheel disc assembly comprises a first wheel disc assembly and a second wheel disc assembly, the first end is connected to the first wheel disc assembly in a transmission manner, and the second end is connected to the second wheel disc assembly. The driving assembly is connected to the wheel disc assembly in a transmission manner, and causes the arc-shaped member to radially expand or contract.

[0005] The technical solution of the present invention arranges multiple arc-shaped members around a fixed axis, so that the pole piece can be carried on the multiple arc-shaped members, and the pole piece can be transported by the arc-shaped members during the rotation of the arc-shaped members around the fixed axis. The first wheel assembly is connected to the first end in a transmission manner, and the second end is connected to the second wheel assembly, so that the first wheel assembly and the second wheel assembly can rotate together with the multiple arc-shaped members. The drive assembly is connected to the wheel assembly in a transmission manner and enables the arc-shaped members to expand or contract radially, thereby changing the radial size of the roller formed by the first ends of the multiple arc-shaped members, and then enabling the radial size to adapt to the tightness of the pole piece located there, so that the adjustment member can support the pole piece near the first end with the same tightness as the pole piece near the second end of the arc-shaped member.

[0006] In one embodiment, the driving assembly is in transmission connection with the first wheel assembly, and drives the first wheel assembly to move axially along the fixed shaft, so that the first end can move radially with the second end as a fulcrum.

[0007] By driving the first wheel disc assembly to move axially with the driving assembly, and driving the first end to move radially with the second end as the fulcrum on the fixed axis while the first wheel disc assembly is moving axially, the space for setting the driving assembly between the first wheel disc assembly and the fixed axis, or between the arc-shaped member and the fixed axis can be reduced. At the same time, such a setting also enables the axial movement of a first wheel disc assembly to drive all the multiple arc-shaped members connected to it to move radially along the fixed axis at the same time, thereby improving the driving efficiency and driving cost, and reducing the situation of driving each arc-shaped member separately. By driving the first end to move radially with the second end as the fulcrum on the fixed axis, when the multiple first ends expand in the direction away from the fixed axis or gather in the direction close to the fixed axis, the effect of adjusting the tightness of the support of the two ends of the roller to the pole piece to be consistent can be achieved by adjusting the radial size of the roller on one side, thereby improving the adjustment efficiency and adjustment accuracy.

[0008] In one embodiment, one of the first end and the first wheel assembly is provided with an inclined slide groove, and the other of the first end and the first wheel assembly is provided with a first pin shaft, and the first pin shaft is slidably disposed in the inclined slide groove.

[0009] In this way, the effect of driving the arc-shaped member to move in the radial direction of the fixed axis in a direction away from the fixed axis or in a direction close to the fixed axis is achieved through the abutment between the first pin shaft and the groove wall of the inclined slide groove. In addition, by adopting a structure in which the first pin shaft is slidably arranged in the inclined slide groove, the situation of driving the arc-shaped member and the first wheel assembly through the inclined sliding block can be reduced, thereby simplifying the transmission structure between the two and reducing the space occupancy rate of the transmission structure.

[0010] In one embodiment, a plurality of first slots are provided on the first wheel assembly, the plurality of first slots are arranged along the circumference of the first wheel assembly, and the first slot has a first opening facing the second wheel assembly, and the first end is inserted into the first slot; the first pin shaft is arranged on the side wall of the first slot, and the inclined slide groove is arranged at the first end.

[0011] With such an arrangement, the space occupied by the adjusting member in the radial direction of the fixed shaft can be reduced, thereby achieving a good protection effect on the first pin shaft and the inclined slide groove.

[0012] In one embodiment, the first wheel disc assembly includes a first wheel disc body and a first bearing. The first wheel disc body is in driving connection with the first end. The first bearing is sleeved outside the fixed shaft; the first wheel disc body is sleeved outside the first outer ring of the first bearing, and the driving assembly is in driving connection with the first inner ring of the first bearing, and drives the first bearing to move axially.

[0013] Such an arrangement reduces the friction force when the first wheel disc body rotates; in addition, the roller can drive the first wheel disc body and the first outer ring of the bearing to rotate, while the first inner ring of the bearing does not rotate, and thus does not cause the drive assembly to rotate, thereby ensuring that the drive assembly has a good stability effect and reducing the risk of affecting the driving effect of the bearing when the drive assembly rotates.

[0014] In one embodiment, the driving assembly includes a sleeve group sleeved outside the fixed shaft, and the sleeve group can move axially of the fixed shaft; the first inner ring of the first bearing is fixedly sleeved outside the sleeve group.

[0015] Such an arrangement can reduce the wear between the first bearing and the fixed shaft, thereby ensuring that the first outer ring of the first bearing can rotate stably relative to the first inner ring, thereby ensuring the stability of the rotation of the first wheel body and the roller, and reducing the risk of shaking of the pole piece arranged on the roller.

[0016] In one embodiment, the sleeve assembly includes a threaded sleeve, the fixed shaft is provided with an external thread, and the threaded sleeve is threadably matched with the external thread.

[0017] Such an arrangement can ensure that the roller will not affect the rotation of the threaded sleeve during rotation, thereby preventing the radial dimension of the roller from changing at any time; and can ensure that the roller will not be twisted while changing its radial dimension.

[0018] In one embodiment, a positioning hole is provided on the sleeve assembly, and the axis of the positioning hole is perpendicular to the axial direction of the sleeve assembly; the adjusting member further includes a positioning member, and the positioning member passes through the positioning hole and is connected to the fixed shaft.

[0019] With such an arrangement, the sleeve assembly can be positioned on the fixed shaft to reduce the risk of the sleeve assembly rotating and / or moving relative to the fixed shaft, thereby ensuring that the roller can rotate stably under the friction force of the pole piece.

[0020] In one embodiment, the positioning hole is a threaded hole; the positioning member is a positioning bolt, the positioning bolt is threadedly connected to the threaded hole, and the positioning bolt radially abuts against the fixed shaft.

[0021] Such an arrangement reduces the risk of the positioning member easily falling off from the positioning hole, making the positioning more secure, and also allows for flexible adjustment of the holding force against the fixed shaft.

[0022] In one embodiment, the sleeve assembly includes a sleeve body, a first limiting portion, and a second limiting portion. The sleeve body is sleeved outside the fixed shaft, and the first bearing is sleeved outside the sleeve body. The first limiting portion is fixedly provided on the sleeve body and is provided on one side of the first bearing in the axial direction. The second limiting portion is fixedly provided on the sleeve body and is provided on the other side of the first bearing in the axial direction.

[0023] Such an arrangement can reduce the risk of the first bearing sliding axially on the sleeve body, thereby improving the stability of the synchronous movement of the first inner ring of the first bearing and the sleeve body.

[0024] In one embodiment, both the first limiting portion and the second limiting portion abut against the first inner ring of the first bearing.

[0025] With such an arrangement, the interference effect of the first limiting portion and the second limiting portion on the rotational movement of the first outer ring of the first bearing can be reduced.

[0026] In one embodiment, a third limiting portion and a fourth limiting portion are provided on the first wheel disc body, and the third limiting portion and the fourth limiting portion are respectively provided on two opposite sides of the first outer ring of the first bearing.

[0027] With such arrangement, when the first bearing moves in its axial direction, the first bearing can drive the first wheel disc body to move synchronously, thereby avoiding the risk that the first bearing cannot move the first wheel disc body with it when moving in the axial direction.

[0028] In one embodiment, the second wheel disc assembly includes a second wheel disc body and a second bearing. The second end is connected to the second wheel disc body. The second bearing is fixedly sleeved outside the fixed shaft, and the second wheel disc body is sleeved outside the second bearing.

[0029] Such an arrangement, on the one hand, reduces the friction force when the second wheel disc body rotates, and on the other hand, ensures that the second wheel disc body does not move in the axial direction of the fixed shaft, thereby ensuring the stability of the connection of the arc-shaped member on the second wheel disc assembly, making it convenient for the user to only unilaterally adjust the radial dimension of one end of the roller close to the first wheel disc assembly, thereby improving the adjustment efficiency and accuracy.

[0030] In one embodiment, the second end is rotatably connected to the second wheel disc body, and a rotation axis of the second end extends along a first direction, and the first direction is perpendicular to both the axial direction of the fixed shaft and the radial direction of the fixed shaft.

[0031] With such arrangement, when the first end of the arc member moves in the radial direction of the fixed axis with the second end of the arc member as a fulcrum, the second end of the arc member can rotate with the swing of the first end, thereby reducing the risk of the second end of the arc member being forcibly bent and deformed.

[0032] In one embodiment, the second wheel disc body is provided with a plurality of second slots, and the plurality of second slots are arranged at intervals along the circumferential direction; the second slot has a second opening facing the first wheel disc assembly, and the second end of the arc-shaped member is rotatably disposed in the second slot.

[0033] With such an arrangement, the space occupied by the adjusting member in the radial direction of the fixed shaft can be reduced, and a good protection effect on the second end of the arc-shaped member can be achieved.

[0034] The present invention also provides a pole piece conveying device, comprising the above-mentioned adjusting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the adjusting member provided by the present invention; Figure 2 for Figure 1 Sectional view at AA in the middle; Figure 3 for Figure 1 A partial enlarged view of point B in the middle; Figure 4 for Figure 1 A partial enlarged view of point C in the middle.

[0037] Description of Figure Numbers: 100, fixed axis; 200, arc-shaped member; 201, first end; 202, second end; 210, inclined slide groove; 220, shaft hole; 20, roller; 300, first wheel assembly; 310, first wheel body; 311, first slot; 312, first pin; 320, first bearing; 321, first inner ring; 322, first outer ring; 330, third limiting part; 340, fourth limiting part; 400, driving assembly; 410, sleeve assembly; 411, sleeve body; 412, first limiting portion; 413, second limiting portion; 500, second wheel disc assembly; 510, second wheel disc body; 511, second slot; 512, rotating shaft; 520, second bearing; 530, fifth limiting portion; 540, sixth limiting portion; 600, positioning piece; 700. Fixing ring.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] In the battery production process, the flatness of the pole piece at the key position will affect the stable and efficient production of this process. For example, in the laser die-cutting process, if one side of the pole piece is in a relaxed state and the other side is in a taut state, the pole ear on the side of the pole piece in a relaxed state will easily deviate from the focus of the cutting point, causing the laser cutting to be out of focus and unable to cut off the pole ear, which will directly affect the yield of the die-cutting machine. Therefore, it is necessary to ensure the flatness of the pole piece. In the related art, the roller is usually a roller body with a fixed outer diameter. In the actual production process, even if the horizontal state of the roller of the equipment for conveying the pole piece is adjusted within a certain accuracy, there may still be inconsistent tightness on both sides of the pole piece itself.

[0043] In order to solve the problem of inconsistent tightness on both sides of a pole piece during transportation, the present invention proposes an adjusting member.

[0044] Please refer to Figures 1 to 3 In one embodiment of the present invention, the adjusting member includes a fixed shaft 100, a plurality of arc-shaped members 200, a wheel assembly, and a driving assembly 400. The plurality of arc-shaped members 200 are arranged around the fixed shaft 100, and the arc-shaped members 200 have a first end 201 and a second end 202 opposite to each other. The wheel assembly includes a first wheel assembly 300 and a second wheel assembly 500, the first end 201 is connected to the first wheel assembly 300 by transmission, and the second end 202 is connected to the second wheel assembly 500. The driving assembly 400 is connected to the wheel assembly by transmission, and makes the arc-shaped member 200 radially expand or contract.

[0045] The fixed shaft 100 refers to a cylindrical shaft that is fixed and does not move, and the axis of the fixed shaft 100 can be used as the rotation axis of the cylindrical roller 20 formed by the plurality of arc-shaped members 200. Along the length direction of the fixed shaft 100, the diameter size of the fixed shaft 100 is the same at all places, or the diameter size of the middle part of the fixed shaft 100 is different from the diameter size of the end part of the fixed shaft 100.

[0046] The arc-shaped member 200 refers to a member whose surface away from the fixed shaft 100 is arc-shaped. A plurality of arc-shaped members 200 are arranged around the fixed shaft 100 so as to be able to be combined together to form a cylindrical barrel structure, which is the roller 20. For example, the arc-shaped member 200 may be a sheet-shaped structure, or the arc-shaped member 200 may be a strip-shaped or column-shaped structure. The arc-shaped member 200 extends along the axial direction of the fixed shaft 100, and a plurality of arc-shaped members 200 are arranged along a circular array to form the roller 20, so that the roller 20 composed of the plurality of arc-shaped members 200 can carry the pole piece, and can drive the pole piece to move when the plurality of arc-shaped members 200 rotate together around the fixed shaft 100, or can drive the plurality of arc-shaped members 200 to rotate together around the fixed shaft 100 when the pole piece moves. Specifically, two, three, four, five or more arc-shaped members 200 may be provided. The arc member 200 has a first end 201 and a second end 202 , wherein the first end 201 is close to one end of the fixed shaft 100 , and the second end 202 is close to the other end of the fixed shaft 100 , that is, the direction from the first end 201 to the second end 202 of the arc member 200 extends along the axial direction of the fixed shaft 100 .

[0047] The wheel assembly refers to an assembly that can rotate around the fixed axis 100 and can be transmission-connected to the arc-shaped member 200 .

[0048] The first wheel assembly 300 refers to a disk assembly for transmission connection with the first end 201 of the plurality of arc-shaped members 200. The first wheel assembly 300 may only include the first wheel body 310, which is directly sleeved outside the fixed shaft 100 so as to be able to rotate relative to the fixed shaft 100. Alternatively, the first wheel assembly 300 may further include a first bearing 320 on the basis of including the first wheel body 310, and the first wheel body 310 is sleeved outside the fixed shaft 100 through the first bearing 320, so as to reduce the friction force when the first wheel body 310 rotates relative to the fixed shaft 100. Alternatively, the first wheel assembly 300 may further include a stopper fixed on the first wheel body 310 on the basis of including the first wheel body 310 and the first bearing 320, and the stopper limits the first bearing 320 in the axial direction of the first bearing 320.

[0049] On the basis of the first wheel assembly 300 rotating relative to the fixed shaft 100, it can also move relative to the fixed shaft 100 in the axial direction of the fixed shaft 100. In order to make the first wheel assembly 300 rotate relative to the fixed shaft 100, the roller 20 formed by the multiple arc-shaped members 200 can be rotated by the friction between the pole piece and the multiple arc-shaped members 200, and then the first wheel assembly 300 can be driven to rotate by the arc-shaped members 200; or a driving device can be set to drive the first wheel assembly 300 to rotate actively, for example, the driving device can be a motor, a gear assembly, a connecting rod mechanism or a screw nut assembly. In addition, the first wheel assembly 300 can also move axially relative to the fixed shaft 100, so that the axial movement of the first wheel assembly 300 can drive one end of the arc-shaped member 200 connected thereto to move axially, thereby changing the radial size of the first end 201 of the arc-shaped member 200 and its vicinity, so as to better fit the tightness of the pole piece near the first end 201. In order to enable the first wheel assembly 300 to move along the axial direction relative to the fixed shaft 100, the first wheel assembly 300 can be driven by a screw nut assembly, or can be driven by a gear rack assembly, a cylinder and other devices. Of course, in other examples, on the basis that the first wheel assembly 300 can only rotate relative to the fixed shaft 100, an additional driving member can be set on the first wheel assembly 300 to drive the radial size of the first end 201 of the arc-shaped member 200. For example, the first wheel assembly 300 can be provided with a structure such as an inclined slider assembly, a connecting rod assembly or a claw to achieve the effect of changing the radial size of the first end 201 of the arc-shaped member 200 and its vicinity.

[0050] The second wheel assembly 500 refers to a disc assembly for connecting with the second ends 202 of the plurality of arc-shaped members 200. Specifically, in one example, the second end 202 of the arc-shaped member 200 does not move in the axial direction and radial direction, the first end 201 of the arc-shaped member 200 can swing radially, and the second end 202 can serve as a fulcrum for the radial swing of the first end 201, then the second wheel assembly 500 and the second end 202 of the arc-shaped member 200 can be fixedly connected, so that when the first end 201 of the arc-shaped member 200 can swing in the radial direction along the fixed shaft 100 using the second end 202 of the arc-shaped member 200 as a fulcrum, the arc-shaped member 200 is similar to a structure of an elastic arm. Or the second end 202 can be rotatably connected to the second wheel assembly 500, and when the first end 201 of the arc-shaped member 200 can still use the second end 202 of the arc-shaped member 200 as a fulcrum and swing in the radial direction of the fixed shaft 100, the second end 202 of the arc-shaped member 200 can rotate relative to the second wheel assembly 500 with the swing of the first end 201, thereby reducing the risk of deformation of the second end 202. In another example, the second wheel assembly 500 can also push the second end 202 of the arc-shaped member 200 to move in the axial direction of the fixed shaft 100, so that the first end 201 of the arc-shaped member 200 also has at least a sub-movement of the axial movement of the fixed shaft 100, and can swing radially through the wheel assembly, and when the second end 202 of the arc-shaped member 200 is pushed to move in the axial direction of the fixed shaft 100, the first end 201 of the arc-shaped member 200 is driven to swing radially. Specifically, in order to enable the second end 202 of the arc-shaped member 200 to drive the first end 201 of the arc-shaped member 200 to swing radially when the second end 202 of the arc-shaped member 200 moves in the axial direction, for example, the first end 201 of the arc-shaped member 200 can be connected to the first wheel assembly 300 through a transmission assembly such as an inclined slider, a gear rack assembly, etc. The second wheel assembly 500 can move in the axial direction of the fixed shaft 100 together with the second end 202 of the arc-shaped member 200, and a driving member can also be provided on the second wheel assembly 500 to drive the second end 202 of the arc-shaped member 200 to move in the axial direction of the fixed shaft 100.

[0051] The driving assembly 400 refers to an assembly that is connected to the first wheel assembly 300 by transmission, or connected to the second wheel assembly 500 by transmission, and can make the arc-shaped member 200 expand or contract radially. When the driving assembly 400 is connected to the first wheel assembly 300 by transmission, the driving assembly 400 can be arranged on the first wheel assembly 300, and directly drive the arc-shaped member 200 to expand or contract radially. Alternatively, the driving assembly 400 can be connected to the first wheel assembly 300 by transmission, and drive the first wheel assembly 300 to move axially along the fixed shaft 100, and then drive the arc-shaped member 200 to expand or contract radially through the axial movement of the first wheel assembly 300, thereby changing the radial size of the first end 201 of the arc-shaped member 200 and its vicinity. When the driving assembly 400 drives the first wheel assembly 300 to move axially along the fixed shaft 100, in one example, the driving assembly 400 can be specifically a cylinder, a linear motor, etc. that directly provides linear motion, and the cylinder and the linear motor can be directly connected to the first wheel assembly 300. In another example, the drive assembly 400 can be a component that converts a rotational motion structure into a linear motion. For example, the drive assembly 400 includes a motor and a connecting rod slider mechanism, the connecting rod slider structure is connected to the motor in a transmission manner, and the first wheel assembly 300 is connected to the slider in the connecting rod slider mechanism; or the drive assembly 400 can also include a gear rack assembly, the gear is meshed with the rack, and the first wheel assembly 300 is connected to the rack, wherein the gear can be mounted outside the fixed shaft 100, or can be independently set with the fixed shaft 100, that is, there is no connection between the two; alternatively, the drive assembly 400 can include a screw nut assembly, etc. The first wheel assembly 300 drives the first end 201 to move radially along the fixed shaft 100 in the axial motion state, which means that the axial motion of the first wheel assembly 300 is converted into the radial motion of the first end 201 of the arc-shaped member 200. At this time, the first wheel assembly 300 and the first end 201 of the arc-shaped member 200 can be realized by a combination of two sets of bevel gears and racks, that is, the first wheel assembly 300 is connected to a rack, which is meshed with a bevel gear; the first end 201 of the arc-shaped member 200 is connected to another rack, which is meshed with another bevel gear, and the two bevel gears are meshed with each other, and the axis is vertically arranged. Alternatively, the first wheel assembly 300 can be connected to the first end 201 of the arc-shaped member 200 by a tilted slider structure to achieve the effect of converting the axial motion of the first wheel assembly 300 into the radial motion of the first end 201 of the arc-shaped member 200.By connecting the driving assembly 400 to the first wheel assembly 300 in a transmission connection, and driving the first wheel assembly 300 to move axially, and the first wheel assembly 300 drives the first end 201 to move radially along the fixed shaft 100 in the axial movement state, the distance between the first end 201 of the arc-shaped member 200 and the axis of the fixed shaft 100 can be changed during the axial movement of the first wheel assembly 300, and then the radial dimension of one end of the roller 20 close to the first wheel assembly 300 can be adjusted unilaterally according to the tightness of the pole piece of the adjustment member, thereby achieving the effect of consistent tightness on both sides of the pole piece. It should be noted that one end of the multiple arc-shaped members 200 is connected to the first wheel assembly 300 in a transmission connection, so that when moving radially along the fixed shaft 100, the multiple arc-shaped members 200 can have a state of being gathered together and a state of being separated from each other during the movement. When the multiple arc-shaped members 200 are in a state of being gathered together, each two adjacent arc-shaped members 200 of the multiple arc-shaped members 200 can be fitted together, or a gap can be provided.

[0052] When the driving assembly 400 is in transmission connection with the second wheel assembly 500, the driving assembly 400 can drive the second wheel assembly 500 to move axially on the fixed shaft 100, and then drive the second end 202 of the arc-shaped member 200 to move axially on the fixed shaft 100 through the second wheel assembly 500, and the first end 201 of the arc-shaped member 200 moves radially under the drive of the axial movement of the second end 202 of the arc-shaped member 200. Specifically, in order to enable the first end 201 of the arc-shaped member 200 to swing radially when the second end 202 of the arc-shaped member 200 moves axially, for example, the first end 201 of the arc-shaped member 200 can be in transmission connection with the first wheel assembly 300 through a transmission assembly such as an inclined slider, a gear rack assembly, etc. The second wheel assembly 500 can move together with the second end 202 of the arc-shaped member 200 in the axial direction of the fixed shaft 100 , or a driving member can be provided on the second wheel assembly 500 to drive the second end 202 of the arc-shaped member 200 to move in the axial direction of the fixed shaft 100 .

[0053] It should be noted that the structures of the first wheel assembly 300 and the second wheel assembly 500 in the present invention are interchangeable, that is, the first wheel assembly 300 can drive the first end 201 of the arc member 200 to expand or contract radially; or in another example, the second wheel assembly 500 can also drive the second end 202 of the arc member 200 to expand or contract radially, that is, it is not limited to the textual description of the above embodiments of the present invention and the scheme disclosed in the explanatory drawings. As long as the driving assembly 400 can realize the scheme of driving one of the wheel assemblies to enable the arc member 200 to expand or contract radially, it is within the protection scope of the present invention.

[0054] The technical solution of the present invention arranges multiple arc-shaped members 200 around the fixed shaft 100, so that the pole piece can be carried on the multiple arc-shaped members 200, and the pole piece can be transported by the arc-shaped members 200 during the rotation of the arc-shaped members 200 around the fixed shaft 100. The first wheel assembly 300 is connected to the first end 201 in a transmission manner, and the second end 202 is connected to the second wheel assembly 500, so that the first wheel assembly 300 and the second wheel assembly 500 can rotate together with the multiple arc-shaped members 200. The driving assembly 400 is connected to the wheel assembly in a transmission manner and makes the arc-shaped members 200 expand or contract radially, so that the radial size of the roller 20 composed of the first ends 201 of the multiple arc-shaped members 200 can be changed, and then the radial size can adapt to the tightness of the pole piece located there, so that the adjusting member can keep the support tightness of the pole piece close to the first end 201 consistent with the support tightness of the pole piece close to the second end 202 of the arc-shaped member 200.

[0055] In one embodiment of the present invention, the driving assembly 400 is transmission-connected to the first wheel assembly 300 and drives the first wheel assembly 300 to move axially along the fixed shaft 100 so that the first end 201 can move radially with the second end 202 as a fulcrum.

[0056] By driving the first wheel assembly 300 to move axially with the driving assembly 400, and driving the first end 201 to move radially along the fixed shaft 100 with the second end 202 as a fulcrum when the first wheel assembly 300 moves axially, the space for setting the driving assembly 400 between the first wheel assembly 300 and the fixed shaft 100, or between the arc member 200 and the fixed shaft 100, can be reduced. At the same time, such a setting also makes it possible for the axial movement of a first wheel assembly 300 to drive all multiple arc members 200 connected thereto to move radially along the fixed shaft 100 at the same time, thereby improving the driving efficiency and driving cost, and reducing the need to drive each arc member 200 individually.

[0057] By making the first end 201 use the second end 202 as a fulcrum and move radially of the fixed axis 100, when multiple first ends 201 expand in a direction away from the fixed axis 100 or gather in a direction close to the fixed axis 100, the effect of adjusting the tightness of the support of the pole piece at both ends of the roller 20 to be consistent can be achieved by adjusting the radial size of the roller 20 on one side, thereby improving the adjustment efficiency and adjustment accuracy.

[0058] Please refer to Figures 1 to 3 In one embodiment of the present invention, one of the first end 201 and the first wheel assembly 300 is provided with an inclined groove 210, and the other of the first end 201 and the first wheel assembly 300 is provided with a first pin shaft 312, and the first pin shaft 312 is slidably disposed in the inclined groove 210.

[0059] The inclined slide groove 210 refers to a slide groove extending in the axial direction of the fixed shaft 100 and inclined in the radial direction of the fixed shaft 100. Specifically, the first end 201 is provided with an inclined slide groove 210, and the first wheel assembly 300 is provided with a first pin 312. Or the first end 201 is provided with a first pin 312, and the first wheel assembly 300 is provided with an inclined slide groove 210. Taking the inclined slide groove 210 provided on the first end 201 as an example, the end of the inclined slide groove 210 close to the second wheel assembly 500 can be inclined in the direction close to the fixed shaft 100. At this time, when the first wheel assembly 300 and the first pin 312 provided on the first wheel assembly 300 move in the direction close to the second wheel assembly 500, the first end 201 of the arc-shaped member 200 moves in the direction close to the fixed shaft 100. At this time, the first ends 201 of the plurality of arc-shaped members 200 gather together, thereby achieving the effect of reducing the outer diameter of the end of the roller 20 away from the second wheel assembly 500. Alternatively, the inclined slide groove 210 can also be tilted at one end close to the second wheel assembly 500 toward a direction away from the fixed axis 100. At this time, when the first wheel assembly 300 and the first pin shaft 312 provided on the first wheel assembly 300 move toward the direction close to the second wheel assembly 500, the first end 201 of the arc-shaped member 200 moves toward a direction away from the fixed axis 100. At this time, the first ends 201 of the multiple arc-shaped members 200 are separated from each other, thereby achieving the effect of increasing the outer diameter of the end of the roller 20 away from the second wheel assembly 500.

[0060] The first pin shaft 312 refers to a cylinder inserted into the inclined slide groove 210 and capable of sliding in the inclined slide groove 210. Taking the first pin shaft 312 being provided on the first wheel assembly 300 as an example, the first pin shaft 312 can be plugged into the first wheel assembly 300, or can be formed into an integral structure with the first wheel assembly 300 by an integral molding method, or can be welded to the first wheel assembly 300 by a welding method.

[0061] By providing an inclined slot 210 on one of the first end 201 and the first wheel assembly 300, and providing a first pin shaft 312 on the other of them, and the first pin shaft 312 being slidably disposed in the inclined slot 210, when the first wheel assembly 300 moves in the axial direction of the fixed shaft 100, the first pin shaft 312 slides in the inclined slot 210, so that the arc-shaped member 200 is driven to move in the radial direction of the fixed shaft 100 in a direction away from the fixed shaft 100 or in a direction close to the fixed shaft 100 through the abutment between the first pin shaft 312 and the slot wall of the inclined slot 210. In addition, by adopting a structure in which the first pin shaft 312 is slidably disposed in the inclined slot 210, the situation of transmitting and connecting the arc-shaped member 200 and the first wheel assembly 300 through the inclined slider can be reduced, thereby simplifying the transmission structure between the two and reducing the space occupation rate of the transmission structure.

[0062] Please refer to Figures 1 to 3 In one embodiment of the present invention, a plurality of first slots 311 are provided on the first wheel assembly 300, and the plurality of first slots 311 are arranged along the circumference of the first wheel assembly 300, and the first slots 311 have a first opening facing the second wheel assembly 500, and the first end 201 is inserted into the first slot 311; the first pin shaft 312 is arranged on the side wall of the first slot 311, and the inclined slide groove 210 is arranged at the first end 201.

[0063] The first slot 311 refers to the second slot 511 into which the first end 201 of the arc-shaped member 200 is inserted. The shape of the second slot 511 may be elliptical, rectangular or other shapes.

[0064] By making the first slot 311 have a first opening toward the second wheel assembly 500, and the first end 201 of the arc-shaped member 200 is disposed in the second slot 511, the space occupied by the adjusting member in the radial direction of the fixed shaft 100 can be reduced. By arranging the first pin 312 on the side wall of the first slot 311 and the inclined groove 210 on the first end 201, a good protection effect can be achieved for the first pin 312 and the inclined groove 210, and the risk of dust entering the inclined groove 210 and causing the first wheel assembly 300 to be unable to effectively drive the first end 201 of the arc-shaped member 200 to move in the radial direction of the fixed shaft 100 when the axial movement is reduced.

[0065] Please refer to Figure 1 to Figure 2 In one embodiment of the present invention, the first wheel assembly 300 includes a first wheel body 310 and a first bearing 320. The first wheel body 310 is in transmission connection with the first end 201. The first bearing 320 is sleeved outside the fixed shaft 100; the first wheel body 310 is sleeved outside the first outer ring 322 of the first bearing 320, and the driving assembly 400 is in transmission connection with the first inner ring 321 of the first bearing 320, and drives the first bearing 320 to move axially.

[0066] The first wheel disc body 310 refers to a disc-shaped component with a sleeve hole in the middle. The sleeve hole of the first wheel disc body 310 is used for the fixed shaft 100 to pass through. When the first wheel disc body 310 is connected to the first end 201 by transmission, the above-mentioned first wheel disc assembly 300 and the first end 201 can be used for transmission connection, which will not be described in detail here.

[0067] The first bearing 320 refers to a rolling bearing sleeved outside the fixed shaft 100 and arranged in the sleeve hole of the first wheel disc body 310, such as a self-aligning ball bearing, a self-aligning roller bearing, a tapered roller bearing, a double-row deep groove ball bearing, a thrust ball bearing, a deep groove ball bearing, an angular contact ball bearing, a cylindrical roller bearing, a needle roller bearing, etc. The first inner ring 321 refers to an annular component close to the axis of the first bearing 320. The first outer ring 322 refers to an annular component sleeved outside the first inner ring 321 and having a rolling body sandwiched between the first inner ring 321, so that it can rotate relative to the first inner ring 321. The first bearing 320 has a first inner ring 321 and a first outer ring 322. The first inner ring 321 of the first bearing 320 is sleeved on the outside of the fixed shaft 100, and the first outer ring 322 of the first bearing 320 contacts the hole wall of the sleeve hole of the first wheel disc body 310, so that when the first wheel disc body 310 rotates, it drives the first outer ring 322 of the first bearing 320 to rotate, while the first inner ring 321 of the first bearing 320 remains stationary; or, when the first inner ring 321 of the first bearing 320 rotates, the first outer ring 322 of the first bearing 320 and the first wheel disc body 310 do not rotate.

[0068] By sleeved the first bearing 320 outside the fixed shaft 100, and sleeved the first wheel disc body 310 outside the first outer ring 322 of the first bearing 320, the first wheel disc body 310 and the first outer ring 322 of the first bearing 320 can rotate simultaneously, thereby reducing the friction force when the first wheel disc body 310 rotates. By connecting the driving assembly 400 with the first inner ring 321 of the first bearing 320 through transmission, and driving the first bearing 320 to move axially, when the driving assembly 400 drives the first bearing 320 to move in the axial direction of the fixed shaft 100, the first bearing 320 can drive the first wheel disc body 310 to move in the axial direction of the fixed shaft 100, thereby ensuring that the first end 201 of the arc-shaped member 200 can move radially on the fixed shaft 100, thereby achieving the effect of adjusting the radial size of one end of the roller 20 close to the first wheel disc assembly 300. In addition, it can be understood that when the roller 20 supports the pole piece to rotate under the friction force of the pole piece, the roller 20 can drive the first wheel body 310 and the first outer ring 322 of the bearing to rotate, while the first inner ring 321 of the bearing does not rotate, and thus the drive assembly 400 will not rotate, thereby ensuring that the drive assembly 400 has a good stability effect and reducing the risk of affecting the driving effect of the bearing when the drive assembly 400 rotates.

[0069] Please refer to Figure 1 to Figure 2 In one embodiment of the present invention, the driving assembly 400 includes a sleeve group 410 sleeved outside the fixed shaft 100, and the sleeve group 410 can move axially in the fixed shaft 100; the first inner ring 321 of the first bearing 320 is fixedly sleeved outside the sleeve group 410.

[0070] The sleeve assembly 410 refers to a component that can be sleeved on the outside of the fixed shaft 100. The sleeve assembly 410 may only include a straight sleeve sleeved on the outside of the fixed shaft 100, or the sleeve assembly 410 may also include a limiting ring arranged outside the straight sleeve, and the first inner ring 321 of a pair of first bearings 320 is limited in the axial direction. Specifically, the sleeve assembly 410 is used to be sleeved on the outside of the fixed shaft 100, so the sleeve assembly 410 has an inner hole in contact with the fixed shaft 100, and the surface of the inner hole can be a smooth surface or can be provided with an internal thread. When the surface of the inner hole of the sleeve assembly 410 used to be sleeved on the outside of the fixed shaft 100 is provided with an internal thread, the outer surface of the fixed shaft 100 can be provided with an external thread correspondingly.

[0071] The driving assembly 400 may only include the sleeve assembly 410. When the inner hole surface of the sleeve assembly 410 is a smooth surface, the user may manually push the sleeve assembly 410; or when the inner hole surface of the sleeve assembly 410 is provided with an internal thread, the user may manually rotate the sleeve assembly 410 so that the sleeve assembly 410 can move along the axial direction of the fixed shaft 100. Alternatively, the driving assembly 400 may also include a driving motor. When the inner hole surface of the sleeve assembly 410 is a smooth surface, the driving motor may push the sleeve assembly 410 so that the sleeve assembly 410 can move along the axial direction of the fixed shaft 100; or when the inner hole surface of the sleeve assembly 410 is provided with an internal thread, the sleeve assembly 410 is driven by the driving motor to rotate the sleeve assembly 410 so that the sleeve assembly 410 can move along the axial direction of the fixed shaft 100.

[0072] By fixing the first inner ring 321 of the first bearing 320 outside the sleeve group 410, the wear between the first bearing 320 and the fixed shaft 100 can be reduced, thereby ensuring that the first outer ring 322 of the first bearing 320 can rotate stably relative to the first inner ring 321, thereby ensuring the stability of the rotation of the first wheel body 310 and the roller 20, and reducing the risk of shaking of the pole piece arranged on the roller 20.

[0073] Please refer to Figure 1 to Figure 2 Further, the sleeve assembly 410 includes a threaded sleeve, the fixed shaft 100 is provided with an external thread, and the threaded sleeve is threadably matched with the external thread.

[0074] A threaded sleeve refers to a sleeve with an inner hole, and the hole wall of the inner hole is provided with an internal thread.

[0075] By providing an external thread on the fixed shaft 100 and matching the threaded sleeve with the external thread of the fixed shaft 100, the threaded sleeve can be rotated to rotate relative to the fixed shaft 100 and move in its axial direction, and then the threaded sleeve can drive the first inner ring 321 of the first bearing 320 to rotate relative to the fixed shaft 100 and move in the axial direction of the fixed shaft 100, so that the first bearing 320 drives the first wheel assembly 300 to move in the axial direction of the fixed shaft 100, so that the first end 201 of the arc member 200 moves in the radial direction of the fixed shaft 100, thereby causing the outer diameter of the end of the roller 20 close to the first wheel body 310 to expand or shrink.

[0076] Due to the setting of the first bearing 320, and the first bearing 320 is sleeved outside the threaded sleeve, and the threaded sleeve is matched with the external thread of the fixed shaft 100, when the first outer ring 322 of the first bearing 320 and the first wheel body 310 rotate with the roller 20, their rotation process will not affect the threaded sleeve, that is, the threaded sleeve will not rotate with the rotation of the first outer ring 322 of the first bearing 320, and it is not easy to move on the fixed shaft 100 along the axial direction of the fixed shaft 100. Therefore, the risk of the threaded sleeve driving the first bearing 320 to move in the axial direction of the fixed shaft 100 can be avoided, and further the risk of the outer diameter of the roller 20 changing at any time while the roller 20 rotates can be avoided, so that the stability of the roller 20 during rotation can be guaranteed. In addition, it can be understood that when the threaded sleeve rotates and moves in the axial direction of the fixed shaft 100, it only drives the first inner ring 321 of the first bearing 320 to rotate and move in the axial direction of the fixed shaft 100, while the first outer ring 322 of the first bearing 320 does not rotate, but only moves in the axial direction of the fixed shaft 100, thereby driving the first wheel assembly 300 to move only in the axial direction of the fixed shaft 100, thereby making the first end 201 of the arc-shaped member 200 move only in the radial direction of the fixed shaft 100, avoiding the risk of the first end 201 of the arc-shaped member 200 rotating relative to the fixed shaft 100 while moving in the radial direction of the fixed shaft 100 and twisting, thereby ensuring the stability of the expansion or contraction of the roller 20 composed of multiple arc-shaped members 200 in the radial direction. That is, in this embodiment, through the combination of the threaded sleeve and the first bearing 320, it can be ensured that the roller 20 will not affect the rotation of the threaded sleeve during the rotation process, thereby preventing the size of the roller 20 in the radial direction from changing at any time; and it can be ensured that the roller 20 will not twist while changing the radial size.

[0077] Please refer to Figures 1 to 3 In one embodiment of the present invention, a positioning hole is provided on the sleeve assembly 410 , and the axis of the positioning hole is perpendicular to the axial direction of the sleeve assembly 410 ; the adjusting member further includes a positioning member 600 , which penetrates the positioning hole and is connected to the fixed shaft 100 .

[0078] The positioning hole may be a through hole or a threaded hole. The positioning member 600 may be a pin, a rivet, a screw or a bolt. For example, when the positioning hole is a through hole, the positioning member 600 may be a pin or a rivet; when the positioning hole is a threaded hole, the positioning member 600 may be a screw or a bolt.

[0079] When the positioning member 600 is connected to the fixed shaft 100, it can be connected to the fixed shaft 100 by passing through the fixed shaft 100 and locking it through the locking member, or by abutting the fixed shaft 100, or it can be connected to the fixed shaft 100 by threading the fixed shaft 100. For example, when the positioning member 600 is a bolt, a plurality of penetration holes spaced along the axial direction of the fixed shaft 100 can be provided on the fixed shaft 100, and the plurality of penetration holes penetrate the opposite sides of the fixed shaft 100 in the radial direction of the fixed shaft 100, so that the positioning hole and one of the penetration holes can be penetrated by a bolt, and the nut can be locked on the bolt to achieve the effect of positioning the sleeve assembly 410 on the fixed shaft 100, further reducing the risk of the sleeve assembly 410 rotating and / or moving relative to the fixed shaft 100. Or when the positioning member 600 is a bolt, the bolt can be abutted on the outer peripheral surface of the fixed shaft 100 after passing through the positioning hole.

[0080] By setting a positioning hole on the sleeve group 410, the axis of the positioning hole is perpendicular to the axial direction of the sleeve group 410, and the positioning piece 600 passes through the positioning hole and is connected to the fixed shaft 100, the sleeve group 410 can be positioned on the fixed shaft 100 to reduce the risk of rotation and / or movement of the sleeve group 410 relative to the fixed shaft 100, thereby ensuring that the roller 20 can rotate stably under the friction force of the pole piece.

[0081] It is understandable that when the user needs to move or rotate the sleeve assembly 410 in the axial direction of the fixed shaft 100 , the user can first remove the positioning member 600 from the positioning hole, and then drive the sleeve assembly 410 to move or rotate on the fixed shaft 100 .

[0082] Please refer to Figures 1 to 3 Furthermore, the positioning hole is a threaded hole; the positioning member 600 is a positioning bolt, the positioning bolt is threadedly connected to the threaded hole, and the positioning bolt radially abuts against the fixed shaft 100.

[0083] Such a configuration can reduce the number of processes for drilling holes on the fixed shaft 100, and reduce the weakening effect on the strength of the fixed shaft 100. In addition, such a configuration also allows the positioning member 600 to be threadedly connected to the positioning hole, thereby reducing the risk of the positioning member 600 easily falling off from the positioning hole, making the positioning more secure, and also allowing the holding force against the fixed shaft 100 to be flexibly adjusted.

[0084] Please refer to Figure 1 to Figure 2In one embodiment of the present invention, the sleeve assembly 410 includes a sleeve body 411, a first limiting portion 412, and a second limiting portion 413. The sleeve body 411 is sleeved outside the fixed shaft 100, and the first bearing 320 is sleeved outside the sleeve body 411. The first limiting portion 412 is fixedly provided on the sleeve body 411 and is provided on one side of the first bearing 320 in the axial direction. The second limiting portion 413 is fixedly provided on the sleeve body 411 and is provided on the other side of the first bearing 320 in the axial direction.

[0085] The sleeve body 411 refers to a sleeve component sleeved outside the fixed shaft 100, and the first bearing 320 is sleeved outside the sleeve body 411, so that when the sleeve body 411 rotates, it drives the first inner ring 321 of the first bearing 320 to rotate; when the sleeve body 411 moves along the axial direction of the fixed shaft 100, it drives the first inner ring 321 of the first bearing 320 to move with the sleeve body 411. It can be understood that in order to achieve the first inner ring 321 of the first bearing 320 to be consistent with the movement state of the sleeve body 411, the sleeve body 411 and the first bearing 320 can be interference fit or transition fit.

[0086] The first limiting portion 412 refers to a component fixedly arranged on the sleeve body 411, and the first limiting portion 412 may be annular or may be a plurality of limiting columns arranged in an annular array along the circumference of the sleeve body 411. The first limiting portion 412 may be an integral structure with the sleeve body 411, or may be connected to the sleeve body 411 by a snap connection, or may be fitted with the sleeve body 411 by an interference fit, etc. The first limiting portion 412 is arranged on one side of the first bearing 320 in the axial direction, for example, it may be arranged on the side of the first bearing 320 facing the roller 20, or it may be arranged on the side of the first bearing 320 away from the roller 20. The first limiting portion 412 may limit only the first inner ring 321 of the first bearing 320, or the first limiting portion 412 may limit both the first inner ring 321 of the first bearing 320 and the first outer ring 322 of the first bearing 320.

[0087] The second limiting portion 413 is a component fixedly arranged on the sleeve body 411 and arranged on the side of the first bearing 320 away from the first limiting portion 412 to limit the axial position of the first bearing 320. For example, when the first limiting portion 412 is arranged on the side of the first bearing 320 facing the roller 20, the second limiting portion 413 is arranged on the side of the first bearing 320 away from the roller 20; when the first limiting portion 412 is arranged on the side of the first bearing 320 away from the roller 20, the second limiting portion 413 is arranged on the side of the first bearing 320 close to the roller 20. The second limiting portion 413 can be annular or a plurality of limiting columns arranged in an annular array along the circumference of the sleeve body 411. The second limiting portion 413 can be an integral structure with the sleeve body 411, or can be connected to the sleeve body 411 by a snap-fitting manner, or can be matched with the sleeve body 411 by an interference fit manner, etc. The second limiting portion 413 may limit only the first inner ring 321 of the first bearing 320 , or the second limiting portion 413 may limit both the first inner ring 321 of the first bearing 320 and the first outer ring 322 of the first bearing 320 .

[0088] By fixing the first limit portion 412 and the second limit portion 413 on the sleeve body 411, the first limit portion 412 and the second limit portion 413 are respectively arranged on two opposite sides of the first bearing 320 in the axial direction, thereby reducing the risk of the first bearing 320 sliding axially on the sleeve body 411, thereby improving the stability of the synchronous movement of the first inner ring 321 of the first bearing 320 and the sleeve body 411, so that the sleeve body 411 can drive the first bearing 320 to move synchronously when it reciprocates axially.

[0089] Please refer to Figure 1 to Figure 2 In one embodiment of the present invention, the first limiting portion 412 and the second limiting portion 413 are both in contact with the first inner ring 321 of the first bearing 320 .

[0090] By abutting the first inner ring 321 of the first bearing 320 with the first limiting portion 412 and the second limiting portion 413, the motion state of the first inner ring 321 of the first bearing 320 can be ensured to be consistent with the motion state of the main body. In addition, such a configuration can also reduce the interference effect of the first limiting portion 412 and the second limiting portion 413 on the motion of the first outer ring 322 of the first bearing 320, so that when the first outer ring 322 of the first bearing 320, the first wheel assembly 300 and the roller 20 rotate, the first limiting portion 412 and the second limiting portion 413 will not affect the rotation of the first outer ring 322 of the first bearing 320, the first wheel assembly 300 and the roller 20, thereby reducing the friction force of the first outer ring 322 of the first bearing 320, the first wheel assembly 300 and the roller 20 when they rotate.

[0091] Please refer to Figure 1 to Figure 2In one embodiment of the present invention, a third limiting portion 330 and a fourth limiting portion 340 are provided on the first roulette body 310 , and the third limiting portion 330 and the fourth limiting portion 340 are respectively provided on opposite sides of the first outer ring 322 of the first bearing 320 .

[0092] The third limiting portion 330 is a component fixedly disposed on the first wheel disc body 310 and capable of limiting one side of the first outer ring 322 of the first bearing 320. The third limiting portion 330 may be a limiting ring disposed in the circumferential direction of the first wheel disc body 310, or the third limiting portion 330 may be a plurality of limiting columns disposed in an annular array along the circumference of the first wheel disc body 310, and the limiting columns protrude from the outer circumferential surface of the first wheel disc body 310. The third limiting portion 330 may be an integral structure with the first wheel disc body 310, or may be connected to the first wheel disc body 310 by a snap connection, or may be fitted with the first wheel disc body 310 by an interference fit, etc. The third limiting portion 330 is disposed on one side of the first outer ring 322 of the first bearing 320, for example, it may be disposed on the side of the first outer ring 322 of the first bearing 320 facing the roller 20, or it may be disposed on the side of the first outer ring 322 of the first bearing 320 away from the roller 20.

[0093] The fourth limiting portion 340 is a component fixedly disposed on the first wheel body 310 and disposed on a side of the first outer ring 322 of the first bearing 320 away from the third limiting portion 330, so as to limit the first outer ring 322 of the first bearing 320 in the axial direction. For example, when the third limiting portion 330 is disposed on a side of the first outer ring 322 of the first bearing 320 facing the roller 20, the fourth limiting portion 340 is disposed on a side of the first outer ring 322 of the first bearing 320 away from the roller 20; when the third limiting portion 330 is disposed on a side of the first outer ring 322 of the first bearing 320 away from the roller 20, the fourth limiting portion 340 is disposed on a side of the first outer ring 322 of the first bearing 320 close to the roller 20. The fourth limiting portion 340 may be a limiting ring disposed on the circumference of the first roulette body 310, or the fourth limiting portion 340 may be a plurality of limiting posts disposed in an annular array along the circumference of the first roulette body 310, and the limiting posts protrude from the outer circumference of the first roulette body 310. The fourth limiting portion 340 may be an integral structure with the first roulette body 310, or may be connected to the first roulette body 310 by means of a snap connection or a screw connection, or may be fitted with the first roulette body 310 by means of an interference fit.

[0094] By connecting the third limiting portion 330 and the fourth limiting portion 340 to the first wheel disc body 310 and respectively arranging them on the opposite sides of the first outer ring 322 of the first bearing 320, the opposite sides of the first outer ring 322 of the first bearing 320 can be stopped by the third limiting portion 330 and the fourth limiting portion 340. Therefore, when the first bearing 320 moves along its axial direction, the first bearing 320 can drive the first wheel disc body 310 to move synchronously, avoiding the risk that the first bearing 320 cannot move the first wheel disc body 310 with it when it moves in the axial direction.

[0095] Please refer to Figure 1 , Figure 2 and Figure 4 In one embodiment of the present invention, the second wheel assembly 500 includes a second wheel body 510 and a second bearing 520. The second end 202 is connected to the second wheel body 510. The second bearing 520 is fixedly sleeved outside the fixed shaft 100, and the second wheel body 510 is sleeved outside the second bearing 520.

[0096] The second wheel disc body 510 is a disc-shaped component that can be sleeved outside the fixed shaft 100 and is disposed at one end of the roller 20 away from the first wheel disc assembly 300. When the second wheel disc body 510 is connected to the second end 202, it can be fixedly connected or rotatably connected.

[0097] The second bearing 520 refers to a rolling bearing that is sleeved outside the fixed shaft 100 and arranged in the second wheel disc body 510, such as a self-aligning ball bearing, a self-aligning roller bearing, a tapered roller bearing, a double-row deep groove ball bearing, a thrust ball bearing, a deep groove ball bearing, an angular contact ball bearing, a cylindrical roller bearing, a needle roller bearing, etc.

[0098] By fixing the second bearing 520 on the outside of the fixed shaft 100 and the second wheel disc body 510 on the outside of the second bearing 520, on the one hand, the friction force of the second wheel disc body 510 when rotating is reduced, and on the other hand, it can be ensured that the second wheel disc body 510 does not move in the axial direction of the fixed shaft 100, thereby ensuring the stability of the arc member 200 connected to the second wheel disc assembly 500, reducing the risk of the arc member 200 expanding outward or contracting inward under the drive of the axial movement of the second wheel disc assembly 500, that is, ensuring the stability of the roller 20 close to the second wheel disc assembly 500, so that the user can only unilaterally adjust the radial dimension of one end of the roller 20 close to the first wheel disc assembly 300, thereby improving the adjustment efficiency and accuracy.

[0099] Please refer to Figure 1 , Figure 2 and Figure 4In one embodiment of the present invention, the second end 202 is rotatably connected to the second wheel body 510, and the rotation axis of the second end 202 extends along a first direction, and the first direction is perpendicular to the axial direction of the fixed shaft 100 and the radial direction of the fixed shaft 100.

[0100] In order to achieve the effect of the second end 202 being rotatably connected to the second roulette body 510, and to make the rotation axis of the second end 202 extend along the first direction, in one example, the second end 202 of the arc-shaped member 200 is provided with an axial hole 220, and the second roulette body 510 is provided with a rotating shaft 512, the axis of the rotating shaft 512 extends along the first direction and is rotatably disposed in the axial hole 220. Alternatively, in another example, the second end 202 of the arc-shaped member 200 is provided with a rotating shaft 512, the axis of the rotating shaft 512 extends along the first direction, and the second roulette body 510 is provided with an axial hole 220, and the rotating shaft 512 is rotatably disposed in the axial hole 220.

[0101] With such a configuration, when the first end 201 of the arc member 200 can move in the radial direction of the fixed axis 100 with the second end 202 of the arc member 200 as a fulcrum, the second end 202 of the arc member 200 can rotate with the swing of the first end 201, thereby reducing the risk of the second end 202 of the arc member 200 being forcibly bent and deformed.

[0102] Please refer to Figure 1 , Figure 2 and Figure 4 In one embodiment of the present invention, the second roulette body 510 is provided with a plurality of second slots 511, and the plurality of second slots 511 are arranged at intervals along the circumferential direction; the second slots 511 have a second opening toward the first roulette assembly 300, and the second end 202 of the arc-shaped member 200 is rotatably disposed in the second slots 511.

[0103] The second slot 511 refers to the second slot 511 into which the second end 202 of the arc-shaped member 200 is inserted. The shape of the second slot 511 may be elliptical, rectangular or other shapes.

[0104] By making the second slot 511 have a second opening toward the first wheel assembly 300 and the second end 202 of the arc member 200 rotatably disposed in the second slot 511, the space occupied by the adjusting member in the radial direction of the fixed shaft 100 can be reduced, and a good protection effect on the second end 202 of the arc member 200 is achieved.

[0105] In another example, a plurality of connecting portions may be spaced apart on the outer circumference of the second roulette body 510, one of the connecting portion and the second end 202 of the arc-shaped member 200 may be provided with an axial hole 220, and another one of the connecting portions may be provided with a rotating shaft 512, the axis of the rotating shaft 512 extending along the first direction.

[0106] Of course, in order to reduce the risk of wear of the rotating shaft 512 , a third bearing may be sleeved on the rotating shaft 512 , and the third bearing is installed in the shaft hole 220 .

[0107] Furthermore, if Figure 2 As shown, in order to limit the overall position of the second wheel body 510 and the second bearing 520, the adjusting member may further include a fixing ring 700, which is fixedly sleeved outside the fixed shaft 100 and is located on the side of the second bearing 520 away from the first wheel assembly 300, and the fixing ring 700 abuts against the second inner ring of the second bearing 520.

[0108] The second inner ring refers to the annular component of the second bearing 520 that is close to the fixed shaft 100 .

[0109] The fixing ring 700 refers to an annular body component fixedly sleeved outside the fixing shaft 100 , and can be in the shape of a sheet-like circular ring or a stepped circular ring.

[0110] By fixing the fixing ring 700 on the outside of the fixing shaft 100 and being located on the side of the second bearing 520 away from the first wheel assembly 300, and the fixing ring 700 abutting against the second inner ring of the second bearing 520, the fixing ring 700 can limit the axial position of the second bearing 520, thereby reducing the risk of axial movement of the second bearing 520. In addition, by abutting against the second inner ring of the second bearing 520, the second outer ring of the second bearing 520 can be prevented from rotating with the second wheel body 510, so that the second bearing 520 and the second wheel body 510 can be rotated around the fixing shaft 100, and the risk of axial movement of the second wheel assembly 500 can be reduced.

[0111] Furthermore, if Figure 2 As shown, when the second roulette body 510 can only rotate around the fixed axis 100 but cannot rotate along the axial direction of the fixed axis 100, in order to ensure the stability of the relative position of the second roulette body 510 and the second bearing 520, the second roulette body 510 in this embodiment is also connected with a fifth limiting portion 530 and a sixth limiting portion 540, and the fifth limiting portion 530 and the sixth limiting portion 540 are respectively arranged on the opposite sides of the second outer ring of the second bearing 520.

[0112] The second outer ring refers to a circular ring component which is sleeved outside the second inner ring and has a rolling body sandwiched between the second inner ring, so that the second outer ring can rotate relative to the second inner ring.

[0113] The fifth limiting part 530 refers to a component fixedly arranged on the second roulette body 510 and capable of limiting one side of the second outer ring of the second bearing 520. The fifth limiting part 530 may be a limiting ring arranged on the circumference of the second roulette body 510, or the fifth limiting part 530 may be a plurality of limiting posts arranged in an annular array along the circumference of the second roulette body 510, and the limiting posts protrude from the outer circumference of the second roulette body 510. The fifth limiting part 530 may be an integral structure with the second roulette body 510, or may be connected to the second roulette body 510 by a snap-fitting manner, or may be fitted with the second roulette body 510 by an interference fit manner, etc. The fifth limiting part 530 is arranged on one side of the second bearing 520, for example, it may be arranged on the side of the second outer ring of the second bearing 520 facing the roller 20, or it may be arranged on the side of the second outer ring of the second bearing 520 away from the roller 20.

[0114] The sixth limiting portion 540 is a component fixedly disposed on the second wheel disc body 510 and disposed on the side of the second outer ring of the second bearing 520 away from the fifth limiting portion 530 to limit the second outer ring of the second bearing 520 in the axial direction. For example, when the fifth limiting portion 530 is disposed on the side of the second outer ring of the second bearing 520 facing the roller 20, the sixth limiting portion 540 is disposed on the side of the second outer ring of the second bearing 520 away from the roller 20; when the fifth limiting portion 530 is disposed on the side of the second outer ring of the second bearing 520 away from the roller 20, the sixth limiting portion 540 is disposed on the side of the second outer ring of the second bearing 520 close to the roller 20. The sixth limiting portion 540 may be a limiting ring disposed in the circumferential direction of the second wheel disc body 510, or the sixth limiting portion 540 may be a plurality of limiting columns disposed in an annular array along the circumference of the second wheel disc body 510, and the limiting columns protrude from the outer circumferential surface of the second wheel disc body 510. The sixth limiting portion 540 may be an integral structure with the second wheel body 510 , or may be connected to the second wheel body 510 by means of a snap connection or a screw connection, or may be fitted with the second wheel body 510 by means of an interference fit.

[0115] By connecting the fifth limiting portion 530 and the sixth limiting portion 540 to the second roulette body 510 and respectively arranging them on the opposite sides of the second outer ring of the second bearing 520, the opposite sides of the second outer ring of the second bearing 520 can be stopped by the fifth limiting portion 530 and the sixth limiting portion 540, thereby ensuring the relative stability of the second bearing 520 and the second roulette body 510 and avoiding the risk of the second bearing 520 moving in the axial direction relative to the second roulette body 510.

[0116] The present invention also proposes a pole piece conveying device, including an adjusting member, the specific structure of which refers to the above-mentioned embodiment. Since the pole piece conveying device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0117] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An adjusting member, characterized in that: include: Fixed axis; A plurality of arc-shaped members, wherein the plurality of arc-shaped members are arranged around the fixed shaft; the arc-shaped members have a first end and a second end opposite to each other; A wheel assembly, the wheel assembly comprises a first wheel assembly and a second wheel assembly, the first end is drivingly connected to the first wheel assembly; the second end is connected to the second wheel assembly; as well as A driving assembly is connected to the wheel assembly in a driving manner and causes the arc-shaped member to expand or contract radially.

2. The adjusting member according to claim 1, characterized in that: The driving assembly is in driving connection with the first wheel assembly, and drives the first wheel assembly to move axially along the fixed shaft, so that the first end can move radially with the second end as a fulcrum.

3. The adjusting member according to claim 2, characterized in that: One of the first end and the first wheel assembly is provided with an inclined slide groove, and the other of the first end and the first wheel assembly is provided with a first pin shaft, and the first pin shaft is slidably arranged in the inclined slide groove.

4. The adjusting member according to claim 3, characterized in that: The first wheel assembly is provided with a plurality of first slots, the plurality of first slots are arranged along the circumference of the first wheel assembly, and the first slots have a first opening facing the second wheel assembly, and the first end is inserted into the first slots; The first pin shaft is arranged on the side wall of the first slot, and the inclined sliding groove is arranged on the first end.

5. The adjusting member according to claim 2, characterized in that: The first wheel disc assembly comprises: A first wheel disc body, the first wheel disc body being drivingly connected to the first end; and The first bearing is sleeved outside the fixed shaft; the first wheel disc body is sleeved outside the first outer ring of the first bearing, and the driving component is transmission-connected with the first inner ring of the first bearing and drives the first bearing to move axially.

6. The adjusting member according to claim 5, characterized in that: The driving assembly comprises a sleeve group sleeved outside the fixed shaft, and the sleeve group can move axially of the fixed shaft; the first inner ring of the first bearing is fixedly sleeved outside the sleeve group.

7. The adjusting member according to claim 6, characterized in that: The sleeve assembly includes a threaded sleeve, the fixed shaft is provided with an external thread, and the threaded sleeve is threadably matched with the external thread.

8. The adjusting member according to claim 6, characterized in that: The sleeve assembly is provided with a positioning hole, the axis of which is perpendicular to the axial direction of the sleeve assembly; the adjusting member further comprises a positioning member, which passes through the positioning hole and is connected to the fixed shaft.

9. The adjusting member according to claim 8, characterized in that: The positioning hole is a threaded hole; the positioning member is a positioning bolt, the positioning bolt is threadedly connected to the threaded hole, and the positioning bolt radially abuts against the fixed shaft.

10. The adjusting member according to claim 6, characterized in that: The casing assembly comprises: A sleeve body, wherein the sleeve body is sleeved outside the fixed shaft, and the first bearing is sleeved outside the sleeve body; a first limiting portion, which is fixed to the sleeve body and disposed on one side of the first bearing in the axial direction; and A second limiting portion, wherein the second limiting portion is fixedly disposed on the sleeve body and is disposed on the other side of the first bearing in the axial direction.

11. The adjusting member according to claim 10, characterized in that: The first limiting portion and the second limiting portion both abut against the first inner ring of the first bearing.

12. The adjusting member according to claim 5, characterized in that: The first wheel disc body is provided with a third limiting portion and a fourth limiting portion, and the third limiting portion and the fourth limiting portion are respectively arranged on two opposite sides of the first outer ring of the first bearing.

13. The adjusting member according to any one of claims 1 to 12, characterized in that: The second wheel disc assembly comprises: a second wheel disc body, the second end being connected to the second wheel disc body; and The second bearing is fixedly sleeved outside the fixed shaft, and the second wheel disc body is sleeved outside the second bearing.

14. The adjusting member according to claim 13, characterized in that: The second end is rotatably connected to the second wheel disc body, and a rotation axis of the second end extends along a first direction, and the first direction is perpendicular to both the axial direction of the fixed shaft and the radial direction of the fixed shaft.

15. The adjusting member according to claim 14, characterized in that: The second wheel disc body is provided with a plurality of second slots, which are arranged at intervals along the circumferential direction; the second slot has a second opening facing the first wheel disc assembly, and the second end of the arc-shaped member is rotatably disposed in the second slot.

16. A pole piece conveying device, characterized in that: Comprising an adjusting member as claimed in any one of claims 1 to 15.

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